thecircuitboardfromthebottomandaresolderedtothetop.Becarefulthattheydon’tshort
togetherastherearesmalltracesthatcomeclosetothem,andalsokeepthemawayfromthe
switchcontacts.Iused24AWGwire.OncethatisdonecutanotchordrillaholeintheISM
plasticcovertofitthewiresthroughwhensnappingtheISMbacktogether.Minecameoutthe
frontoftheISM.(Ifinstalledinthecar,thesideoftheISMthatfacesthefrontofthecar)
Next,constructthecircuitthatmyschematicdepicts.AllofthepartsareavailableatRadio
Shack.TheRFIDcoilcanbemadefromanycoatedwire.28AWGtransformerwirewillwork
well.Iused28AWGaluminumwirethatIhadlyingaround.100turnswillworkfine.Makesure
thatthetipofyoursparekeywillfitinsidethecoil.Don’tmakeittoobigeither;youwantthe
tipofthekeytojustfitinside.Thesparekeywillbetapedortie‐wrappedinsidethecoilandthe
coilwillbehiddenupinsidethedashsonoonecaneasilygettoit.
TheRS(RemoteStarter)doesn’tneedalotofcurrentbecausethiscarusesalowcurrentdigital
ignitionswitch.SoIhookedtheRS’spowerwirestoasparefuseintheIPEC22.(fusepanelat
leftsideonthedash)IremovedtheRSmain30ampfusesandreplacedthemwith10amp
ones.TheRSshouldalsoincludeakeylessentryfeature.Withoutthisyouwon’tbeableto
unlockthedoorwhentheRSisactive.ThisisbecausetheCIMignoresallkeylessentryrequests
fromthefactorytransmitterwhentheignitionison.Unfortunatelybecausetheentirecarruns
onabussystem,youwillneedtofeedwiresintothedriverdoortoaccessthelock/unlockand
trunkreleasewires;unlessofcourseyoucanfindanaftermarketI‐BUSinterfaceforaSaab9‐3.
GoodLuck!YoucanalsopurchaseaRSwithkeylessentryandanalarmifyouwantevenmore
security.IusedtheAvital4103whichhaskeylessentry.YoucangetoneonEBAYforabout$50.
UsetheWIStofindthewiresandconnectorsfortheparkinglights,doorlocks,trunkrelease,
brakelightswitch,hoodswitch,(ifyouhaveafactoryalarm)etc.Followtheinstructionsthat
camewiththeRStohookupthesewires.YouwillonlyusetheIGN#1,IGN#2,andSTART
outputsontheRS.YouwillnotneedtheACCoutput.Connectthesewirestoyournewly
creat
edcircuitboard.AlsoconnectthewiresyoupreviouslysolderedtotheISMcircuitboardto
yournewcircuitboard.Ihighlysuggestusingplug/jackconnectorssothingscanberemoved
easilyfortesting/troubleshooting.
Withanyluckwhenyouhookeverythingupitwillwork.Ifitdoesn’twork,you’llneedbasic
electronictroubleshootingskillstofindtheproblem.Ihaveitworkingona2008Saab9‐3Turbo
XwiththeB284R2.8TV6enginewithanautomatictransmission.Ididn’tfakethemodulewake
up(preparetostart)signalastheB284Rengine/ECMwillstartjustfinewithoutit.Other
engines/ECMsmayneedthissignal.Itisusedprimarilytoprimethefuelpump.Onthisengine
thefuelrailremainsunderpressurewhiletheengineisoffandthepumpcanalmostinstantly
supplytherequiredpressuretotherailanyhow.Ifyourengine/ECMneedsthissignal,another
wirewillberequired.